FR

Frank Petrus Den Ridder

📍 Zevenbergen, NL: #12 of 23 inventorsTop 55%
Overall (All Time): #3,486,784 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6774331 Pressure sensitive switch Hans Johannes Eckhardt 2004-08-10